Looking at the NAM and GFS forecasts for tomorrow, things look absolutely done for.
I'll continue to watch this system however, as the dynamics themselves warrant it. Large amounts of early morning convection are the culprit for putting a damper on the tornado chances with this system in the northern sector. Our biggest hope, is that this is being slightly over forecast, and that with the rapid deepening of the cyclone most of the early waa precipitation is quickly lifted northeastward out of the potential target area.
If this scenario is realized, I think northern Missouri would warrant some attention. Just ahead of the surface low and near the warm front, low-level shear profiles would lend themselves towards updraft rotation. Should early day convection be lifted out of the area soon enough, and some insolation can occur a broken line of supercells across northern Missouri southward does not seem unreasonable. The Chillicothe, Missouri area would not be a bad place to be in this scenario.
Just hard to accept a 500mb prog like this would go to waste.
http://weather.cod.edu/forecast/WRF/...500_spd_36.gif
Of course, this is hoping for a lot and going largely against what model data is showing. I think it warrants careful observation through tomorrow morning, however.
Wednesday, September 30, 2009
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